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Oxygen Consumption by Fruits and Vegetables

机译:水果和蔬菜的耗氧量

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Respiration by fruits and vegetables is vital action to generating the ATP needed for maintenance of cell viability, even after harvesting and as nutrients decompose. Therefore, respiration is strongly associated with qualitative deterioration during transportation and storage. Measurement and mathematical modeling of O_2 uptake and CO_2, production rates have been effective for evaluating the deterioration rate of horticultural products. ATP is produced by F_OF_1-ATP synthase through the transfer of electrons from ubiquinone to cytochrome c oxidase (COX) in plant cells. Although COX consumes a large amount of O_2 taken into cells, oxidizing protons as the terminal enzyme in the classical electron transport chain, an alternative pathway involving an alternative oxidase has been discovered, which performs the same reaction in plant cells without producing ATP. Staining and light sensing have been employed to measure enzymatic activity and O_2 consumption rate, respectively.
机译:水果和蔬菜的呼吸对于产生即使在收获后和营养分解时仍能维持细胞活力所需的ATP而言都是至关重要的作用。因此,呼吸与运输和储存过程中的质量下降密切相关。 O_2吸收和CO_2的产生率的测量和数学模型已经有效地评估了园艺产品的劣化率。 ATP由F_OF_1-ATP合酶通过将电子从泛醌转移到植物细胞中的细胞色素C氧化酶(COX)产生。尽管COX消耗大量进入细胞的O_2,但氧化质子作为经典电子传输链中的末端酶,但是已经发现了涉及替代氧化酶的替代途径,该途径在植物细胞中进行相同的反应而不产生ATP。染色和光感测已分别用于测量酶活性和O 2消耗速率。

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